/// <summary>
/// Adds the given unit to this map.
/// Returns its new ID.
/// </summary>
public ulong AddUnit(Unit u)
{
u.Pos.OnChanged += Callback_UnitMoved;
if (!u.IsIDRegistered)
{
u.RegisterID(nextID);
nextID += 1;
}
//Add the unit's info to various cached data structures.
if (!unitsByType.ContainsKey(u.MyType))
{
unitsByType.Add(u.MyType, new HashSet <Unit>());
}
unitsByType[u.MyType].Add(u);
if (!unitsByPos.ContainsAt(u.Pos, u))
{
unitsByPos.AddValue(u, u.Pos);
}
idToUnit.Add(u.ID, u);
units.Add(u);
u.MyGroup.UnitsByID.Add(u.ID);
if (OnUnitAdded != null)
{
OnUnitAdded(this, u);
}
return(u.ID);
}
private void CommonInit()
{
Groups = new Group.GroupSet(this);
IsPaused = new Stat <bool, Map>(this, false);
pathingGraph = new Graph(this);
pathing = new Pathfinding.PathFinder <Vector2i>(pathingGraph, null);
unitsByPos = new GridSet <Unit>(Tiles.Dimensions);
//When the tile grid changes size, reset "unitsByPos".
Tiles.OnTileGridReset += (grid, oldSize, newSize) =>
{
unitsByPos = new GridSet <Unit>(newSize);
foreach (Unit u in units)
{
unitsByPos.AddValue(u, u.Pos);
}
};
}